this derivation will be built:
  /nix/store/skn1p23wm9qh8irdrxqzpgn6pgy9lsjk-check-sandbox-runtime.drv
building '/nix/store/skn1p23wm9qh8irdrxqzpgn6pgy9lsjk-check-sandbox-runtime.drv'

upload niks3: ok